- 1. Building dams is a crucial engineering feat that involves constructing barriers across rivers or streams to control and manage water flow. Dams serve multiple purposes, including providing hydroelectric power, regulating water supply for irrigation and drinking water, preventing floods, and supporting navigation. The process of building a dam requires careful planning, design, and construction to ensure its stability and effectiveness. Environmental impact assessments must also be conducted to evaluate and mitigate any potential negative effects on the surrounding ecosystem and wildlife. Overall, building dams requires a combination of engineering expertise, environmental considerations, and effective management to successfully meet the water-related needs of a region.
Which type of dam relies on the force of gravity to hold back water?
A) Arch dam.
B) Gravity dam.
C) Barrage dam.
D) Embankment dam.
- 2. Which material is commonly used to construct dams due to its strength and durability?
A) Bamboo.
B) Wood.
C) Concrete.
D) Plastic.
- 3. What is the process of water passing over or through a dam called?
A) Siphoning.
B) Spillway.
C) Leakage.
D) Inundation.
- 4. What environmental impact can dams have on rivers?
A) Disrupting fish migration.
B) Boosting local biodiversity.
C) Enhancing natural habitats.
D) Reducing water pollution.
- 5. Which type of dam is typically built in a narrow canyon or valley?
A) Gravity dam.
B) Arch dam.
C) Buttress dam.
D) Embankment dam.
- 6. What can a dam failure lead to?
A) Increased wildlife population.
B) Enhanced water quality.
C) Flooding downstream.
D) Improved soil fertility.
- 7. Which country is home to the famous Hoover Dam?
A) China.
B) United States.
C) Brazil.
D) Russia.
- 8. What is the purpose of a spillway on a dam?
A) To store emergency supplies.
B) To filter out debris.
C) To generate additional power.
D) To release excess water safely.
- 9. Which type of dam is constructed using earth or rock fill?
A) Embankment dam.
B) Arch dam.
C) Buttress dam.
D) Gravity dam.
- 10. Which important factor must be considered before constructing a dam in a specific location?
A) Geological feasibility
B) Proximity to urban areas
C) Aesthetic appeal
D) Historical significance
- 11. Which term refers to the walls that confine the sides of a dam?
A) Spillways
B) Abutments
C) Piers
D) Buttresses
- 12. What safety measures are put in place to detect dam deformation?
A) Weather vanes.
B) Decorative lights.
C) Water purifiers.
D) Monitoring instruments.
- 13. What is a common method of stabilizing a dam against potential failure due to seepage?
A) Ignoring the issue
B) Removing the dam
C) Grouting
D) Covering with plants
- 14. What is the term for the process of filling a reservoir behind a dam?
A) Evaporation.
B) Condensation.
C) Impoundment.
D) Erosion.
- 15. What is an essential consideration in dam safety management?
A) Building taller dams
B) Fast-tracking construction
C) Ignoring warning signs
D) Regular maintenance and inspections
- 16. Which engineering discipline is involved in designing dams?
A) Aerospace engineering.
B) Mechanical engineering.
C) Civil engineering.
D) Biomedical engineering.
- 17. What is the primary advantage of hydroelectric power generated by dams?
A) Renewable energy.
B) Expensive energy.
C) Polluting energy.
D) Non-renewable energy.
- 18. What is the practice of removing a dam to restore a river's natural flow called?
A) Dam removal.
B) Dam reinforcement.
C) Dam retrofitting.
D) Dam expansion.
- 19. Which organization provides guidelines for safe dam construction practices?
A) International Commission on Large Dams (ICOLD)
B) World Health Organization (WHO)
C) United Nations Educational, Scientific and Cultural Organization (UNESCO)
D) Greenpeace
- 20. Which dam attribute affects the amount of energy that can be generated?
A) Height of the dam.
B) Age of the dam.
C) Dam color.
D) Location of the dam.
- 21. Which country has the largest dam based on power generation capacity?
A) USA
B) Brazil
C) China
D) India
- 22. Which type of dam uses a series of supports on the downstream side?
A) Embankment dam.
B) Gravity dam.
C) Arch dam.
D) Buttress dam.
- 23. What can be a consequence of damming a river?
A) Inducing droughts.
B) Creating wetlands.
C) Increasing erosion.
D) Altering sediment transport.
- 24. What is the term for the process of collecting sediment in a reservoir behind a dam?
A) Siltation
B) Condensation
C) Erosion
D) Desalination
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